Mining machine



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C. S. OLDROYD MINING MACHINE Fil ed Jan. 8, 1921 7 1'7 sheets-sheet 1'7 avwemto'z Patented June 26, 1923.

UNITED STATES 1,460,077 P rsN't oFFicE.

CYRUS S. OLDROYD, OI GINCINNATI, OHIO.

' MINING MACHINE.

Application filed January 8, 1921. Serial 170. 485,821.

the following'is a specification, reference being had to the accompanying drawing.

My improvement relates particularly to machines used for cutting into uprightwalls of coal, rock, or similar material, the machine comprising cutting means actuated by the machine and projected endwise into the wall of coal, or other material, and then moved sidewise to make a sweeping cut.

The object of myimprovement is to provide a machineiby which the cutting means may be made to cut kerfs into the Wall as follows: (1) horizontally along the floor level and horizontally at other levels as high as the machine can-reach; (2) vertically and parallel to the general forward course of the malphine Within a certain range and diagona y range; (3) obliquely toward the right or toward the left within a certain range; (4:) annularl around a horizontal axis; and (5) in a varlety of curves.

Another object of the invention is to provide mechanism comprising cutting mechanism which may be lowered below and raised above the level of the track supporting the machine and operated for cutting in such low position, in order that the undercutting may be at the level of the fioor upon which the track rests. v

By way of general statement, it may be said that the machine consists of (1) a truck having supporting or traction wheels adapted to rest on an ordinary rail track or on a floor; (2) a longitudinal body supported by the truck and turnable on an upright axis; (3) a neck located at the front of said movable body and rotatable on a horizontal axis extending lengthwise of the machine and approximately in an upright plane cutting midway between the track mile; (4) a head supported upon the neck and rotatable there on on an axis which is perpendicular to the axis upon which the neck rotates; (5) a tongue comprising a cutting mechanism suport and cutting mechanism. said support eing supported upon said head for movement toward and from the axis of rotation of said neck, whereby the cutting mechanism, supported by said support, is supported in subto said course within a more extended stantially horizontal position and movable bodily toward and from the axis of rotation v of the neck and for bodily orbital movement around said axis.

p The truck, body, neck, head, and said support and the cutting means being thus related to each other, the cutting means may be put into a variety of positions and through a variety of movements while it is cuttin as will hereinafter be described.

Int e accompanyingdrawings:

Fig. l is an elevation of the right-hand side of a machine embodying my improvement;

Fig. 2 is a plan of the same machine;

Fig. 3 is a front elevation, the cutting toolbeing broken away;

Fig. 3 is a rear elevation, parts being broken away;

Figs. 4 and 4 are an upright, longitudinal section the section occupying two sheets, Fig. 4 being a continuation rightward of the structure shown in Fig. 4;

Fig. 5 is a plan of the truck platform;

Fig. 6 is an elevation of the right-hand side of said platform;

Fig. 7 is a plan of the body of the machine separated from the truck and other parts;

Fig. 8 is an elevation of the right-hand side of said body;

Fig. 9 is an upright, transverse section on the line, 99, of Figs. 7 and 8, looking toward the right;

Fig. 10 is a front elevation of the body.

shown in Figs.'7 and ,8, portions being broken away;

Fig. 11 1s a bottom view of the top plate of the body of the machine;

Fig. 12 is an elevation of the right-hand edge of said plate, a part being broken away;

Fig. 13 is an elevation of the. front end of said plate;

Fig. 14 is a transverse, upright section on the line, 14-14, of Fig. 11;

Fig. 15 is an upright transverse section on the line, 15--15, of Fig. 11;

Fig. 16 is a horizontal sectiononthe line, 16-16, of Figs. 4 and 4'; I

Fig. 17 is a horizontal section on the line, 1717, of Fig. 4

' Fig. 18 is an upright, transverse section on the line, 185-18, of Fig.4;

Fig. 19 is an upright section on the line, 19-49, of Fig. 17;

Fig. 20 is a horizontal section on the line, 20-20, of Fig. 1a;

, tion;

Fig, 21 is a horizontal section on the line,-

21-21, of Fig. 18; i

Fig. 22 is a detached view of one of the members shown in Fig. 18;

Fig. 23 is a section on the line, 23-23, of F .1, 2 and 4", looking toward the left;

the neck shown in Fig. 31 is a right-hand side'elevation of said section; v v

Fig. 32 is an upright longitudinal section on the line, 32- -32, ofFig. 30;

Fig. 33 is a plan of a binding plate to be applied to the lower head section;

Fig. '34 (Sheet 9) is atop view of the upright head section, portions being broken away; 1 i

Fig. 35 is a right-hand side elevation of said upper head section;

Fig, 36 is an upright longitudinal section on the line, 36-36, of'Fig. 34;

Fig. 37 is a horizontal'section on the line, 37-37,of Fig. 4"; v I

Fig. 38 is a horizontal section on the line, 38-38, of Fig. 4

Fig. 39 is a section on the line, .3939,-of Fig. 4 looking toward the left, portions being broken away;

Figs. 40, 41, 42 and 43, are plans showing the cutting mechanism supported 'in different'positions. p

Referring to said drawings,-A designates the truck. B designates'the longitudinal body which is turnable onan upright axis on the truck. C designates the neck which is supported on the forward end of said body and rotatable on an axis which is horizontal and parallel to the body, B, and the trackrails,R. D designates the head which is supported by said neck and rotatable V thereon through approximately 180 degrees .on an axiswhich is perpendicular to the axis of the neck. E designates the tongue. The truck comprises supporting or traction wheels, A which are in the form of ordinary mine car wheels and mounted on axles, A". A isa horizontal platform supported upon said axles and upon which is supported the body, B. The platform is shown in the form ofa rectangular parallelogram with downward-directed flanges along itsfour edges.

. 24 is a sideelevation of the neck, the- I At the forward end of the body is a front cross wall, B. At its middle the upper portion of said wall is. cut out to form the lower half of a bearing, B.

Approximately midway between its front and rear ends, the body has a rear cross wall,

B, which has a circular opening, B, in horizontal axial alignment with the bearing, B, in the cross wall, B. j

A to plate, B, rests upon the cross walls, B an B Said top plate is secured in position by bolts, B extending downward through said plate into the cross walls and.

also into the bottom of the body, B.

At the middleof the forward edge of the top plate is a downward extension, B fitting into the opening in'the front cross wall, B and havin in its lower end a half circular recess w ich formsthe upper half of the bearing, B, already described.

On the bottom of the body, B,-a little way forward. of the rear'cros s -wall and on the upright, middle, longitudinal plane of the machine is a trunnion, B which extends downward into a bearing, A, formed in the floor of truck. On the truck are rollers, A,

which extend above the upper face of the truck far enough to support the body free from the upper face of the truck. Thus the body-is supported turn-table fashion on the truck for rotation on the upright axis of said trunnion. The means for turning said body will be described further on.

Below said trunnion is an uprighthousin A", havingan upper, annular horizonta flange, A, secured against the lower face of the platform by means of bolts or screws,

. AL- A shaft, A", rests rotatably in the trunnion on the axial line of the "trunnion. In

the bottom of said housing is abearing, A,

'which receives the lower end of the shaft,

A. On said shaft, just above said bearing is a worm, A, which meshes with a worm gear wheel A, on a shaft, A resting in bearings, formed in the housing, A. Said shaft, A, rests also in a bearing, A, extending downward from the truck platform. (Figs. 4, 17 and 18). On the rear end of said shaft is a bevel gear wheel, A".

Adjacent the gear wheel, A, on the rear axle, .A, are supported two bevel gear wheels, A", facing toward each other and slidable lengthwise on the shaft and held against rotation on the shaft by a feather, A Said gear wheels have a common grooved hub engaged by an arm, A", on a shift lever, A. By means of said hub said.

wheels, A",are' spaced fromeach other so that by means of the shift lever either of said wheels may be brought into mesh with the gear wheel, A or both moved out of engagement with the wheel, A. By means of the shaft, A, and A and the axle, A, and the gear wheels associated therewith, the truck axle, A may be rotated in either direction, at the will of the operator, for propelling the truck forward or backward.

ower is transmitted to the shaft, A, as will be hereinafter described.

At the rear of the gear cross wall, B a motor, B is seated upon the floor of the body, B, and has a horizontal rotary axle, B in axial alignment with thebearing, B in the front cross wall, B but said axle ends before reaching said cross wall. Said axle has a bearing, B on a horizontal, transverse bridge, B, sup orted by said side walls of the body, B. ear the motor and at the forward side of the rear cross wall, 13, is a bevel gear wheel, B surrounding the axle, B", and immovably keyed thereto.

The upper end of the shaft, A", is joined immovably to acircular plate or disk, A. When said disk is rotated, the shaft, A, is correspondingly rotated. Said disk rests on the upper end of the trunnion, B.

An annular internal gear wheel, B", lies flatwise upon the plate, A, and is concentric with shaft, A, and is secured to the plate, A, by means of rivets, B. Immediately above the gear, B", and on the same axis is another annular internal gear, B,

which is a little larger than the gear, B", and which is held against rotation by brackets, B, supported by the side walls of the body, B.

Within the internal gears, B and B and resting upon the plate, A, is an eccentric wheel, B, extending to the upper level of the gear, B A stud, 13, extends downward from the eccentric wheel, B, into a bearing, B, on the axis of the shaft, A". An eccentric gear, B loosely surrounds the eccentric wheel. B and meshes with the internal gear, B". surrounding the eccentric wheel, and resting upon the eccentric. gear, B is a similar eccentric'gear, B. The gear, B is secured to the lower ear wheel, 13, by means of rivets, B. an it is a little larger in diameter than the eccentric gear, B, so as,

to permit meshing with the upper internal gear, B". Upon the upper face of the eccentric wheel, B is a bevel gear, B meshing with the bevel pinion, 13", already described as surrounding the motor axle. B

' adjacent the rear cross wall, 13 The bevel gear wheel, B, is secured to the upper cam wheel, B, by means of screw bolts, B. The gearing. thus described, is already known to the art as an epicyclic gearing. In the present structure it is employed for transmitting motion from the motor axle to the upright shaft, A at a reduced velocity.

It is to be observed that this gearing is to be used. only when it is desired to move the machine bodily forward or backward on the track. When it is desired that the machine shall remain stationary while the motor is Also loosely in action, the shift lever, A, is so set astobring both bevel gear wheels, A", out of engagement with the bevel gear wheels, A", on the truck shaft, A.

On the rear end of the truck, A, is a gear rack, A, formed concentric to the upright axis of the body, B. On the lower face of the body, B, are two bearings, F arranged on a line parallel to the length of the body. In said bearings rests a shaft, F On the forward end of said shaft is fixed a spur gear wheel, F, which meshes with said gear rack. On the rear end of said shaft is a spur gear wheel, F which meshes with a smaller spur gear wheel, F on a motor, F which is seated on the floor of the body B. \Vhen the body is to be turned horizontally on its upright axis, the motor is set into motion in the appropriate direction to turn the body in the desired direction.

In describing the neck and the head, for convenience, it will be assumed that the neck has been so turned on its axis as to bring these parts into the position shown in Figs. 1, 3, and 4 of the drawings, so that the porportion of the neck which extends the farther from the longitudinal axis of the machine (the axial line of the motor, B and the motor axis, B is directed to or toward the floor, such portion being, for convenience, designated the lower portions of the neck, while the portion which is then above said longitudinal axial line is designated the upper portion of the neck,

The neck, C, comprisesa rigid horizontal journal, C preferably integral with the other portions of said neck, which journal rests in the bearing, B, which, as above described is formed in the forward cross wall, B and the downward extension, B, of the top-plate. On the rear end of said journal is a worm gear wheel, C, which bears against the rear face of the transverse Wall, E. Above the'level of the axis of the journal, C the neck extends only to the height of the top-plate, B". Below said axis, the neck (when-the body is in its lower posit-ion) extends downward below the level of the track rails, R, and close to the portion of the floor which is in front of said rails, the neck thus extending below the supporting faces of the machine or the upper surface of the track rails as much as the sum of the height of the track rails plus the ties, T, upon which the rails are supported.

The neck, C, has a lower forward extension, C and an upper forward extension, C, secured thereto. On a common axial line which is perpendicular .to the axis of the neck, the extension, C has a bearing, C", and the extension, C*, has a bearing, C. The extension, O, is detachable from the upright portion of the head. On each lateral edge, said extension has an upright groove, C, each being 

